Why only one star? The product was purchased specifically for the volume control. Because this does not work the product complies 0% of the requirement. 0 stars would be more appropriate. Silicone in-ear plug is far too soft, so that they constantly fall out. The sound is acceptable for the price. The build quality is good for the price. The shelf life can be classified as not long now, because the plug is not bent as in my old headphones and so the breaking point for the cable break is inevitable.
Those looking for very cheap headphones without any claim, should buy. All other Hands off!